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Swiftを長押ししてテーブル行を選択する方法

選択したテーブル行に応じてコードを実行する長押しジェスチャー認識機能を持つテーブルがあります。

私が抱えている問題は、現在必要な行をタップしてから長押しする必要があることです。

最初に選択するためにタップする必要なく、長押ししている行をテーブルに選択させるにはどうすればよいですか？

iosswiftuigesturerecognizer
20
LB79

次のコードは私のためにうまく機能します：

ViewDidLoadに長押しジェスチャー認識機能を追加します。

// tapRecognizer, placed in viewDidLoad
let longPressRecognizer = UILongPressGestureRecognizer(target: self, action: "longPress:")
self.view.addGestureRecognizer(longPressRecognizer)

次に、長押しで呼び出すメソッドは次のようになります。

//Called, when long press occurred
func longPress(longPressGestureRecognizer: UILongPressGestureRecognizer) {

    if longPressGestureRecognizer.state == UIGestureRecognizerState.Began {

        let touchPoint = longPressGestureRecognizer.locationInView(self.view)
        if let indexPath = tableView.indexPathForRowAtPoint(touchPoint) {

            // your code here, get the row for the indexPath or do whatever you want
    }
}
25
user3687284

Swift 4

override func viewDidLoad() {
    super.viewDidLoad()
    setupLongPressGesture()
}

func setupLongPressGesture() {
    let longPressGesture:UILongPressGestureRecognizer = UILongPressGestureRecognizer(target: self, action: #selector(self.handleLongPress))
    longPressGesture.minimumPressDuration = 1.0 // 1 second press
    longPressGesture.delegate = self
    self.tblMessage.addGestureRecognizer(longPressGesture)
}

@objc func handleLongPress(_ gestureRecognizer: UILongPressGestureRecognizer){
    if gestureRecognizer.state == .ended {
        let touchPoint = gestureRecognizer.location(in: self.tblMessage)
        if let indexPath = tblMessage.indexPathForRow(at: touchPoint) {

        }
    }
}

Swift

override func viewDidLoad() {
    super.viewDidLoad()
    setupLongPressGesture()
}

func setupLongPressGesture() {
    let longPressGesture:UILongPressGestureRecognizer = UILongPressGestureRecognizer(target: self, action: #selector(YourViewController.handleLongPress(_:)))
    longPressGesture.minimumPressDuration = 1.0 // 1 second press
    longPressGesture.delegate = self
    self.tblMessage.addGestureRecognizer(longPressGesture)
}

func handleLongPress(_ longPressGestureRecognizer: UILongPressGestureRecognizer) {

    if longPressGestureRecognizer.state == UIGestureRecognizerState.Began {

        let touchPoint = longPressGestureRecognizer.locationInView(self.view)
        if let indexPath = tableView.indexPathForRowAtPoint(touchPoint) {

            // your code here, get the row for the indexPath or do whatever you want
        }
    }
}

目的-C

UILongPressGestureRecognizer* longPressRecognizer = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(onLongPress:)];
[self.tableView addGestureRecognizer:longPressRecognizer];

-(void)onLongPress:(UILongPressGestureRecognizer*)pGesture
{
    if (pGesture.state == UIGestureRecognizerStateRecognized)
    {
    //Do something to tell the user!
    }

    if (pGesture.state == UIGestureRecognizerStateEnded)
    {
        UITableView* tableView = (UITableView*)self.view;
        CGPoint touchPoint = [pGesture locationInView:self.view];
        NSIndexPath* row = [tableView indexPathForRowAtPoint:touchPoint];
        if (row != nil) {
        //Handle the long press on row
        }
    }
}
22
PinkeshGjr

Swift 3機能：

func handleLongPress(_ longPressGestureRecognizer: UILongPressGestureRecognizer) {

    if longPressGestureRecognizer.state == UIGestureRecognizerState.Began {

        let touchPoint = longPressGestureRecognizer.locationInView(self.view)
        if let indexPath = tableView.indexPathForRowAtPoint(touchPoint) {

            // your code here, get the row for the indexPath or do whatever you want
    }
}

viewDidLoad：

let longPressGesture:UILongPressGestureRecognizer = UILongPressGestureRecognizer(target: self, action: #selector(YourViewController.handleLongPress(_:)))
longPressGesture.minimumPressDuration = 1.0 // 1 second press
longPressGesture.delegate = self
self.tableView.addGestureRecognizer(longPressGesture)

詳細： https://github.com/Apple/Swift-evolution/blob/e4328889a9643100177aef19f6f428855c5d0cf2/proposals/0046-first-label.md

19
Kulker22

Swift 4

let longPressRecognizer = UILongPressGestureRecognizer(target: self, action: #selector(longPressed(sender:)))
self.view.addGestureRecognizer(longPressRecognizer)

// MARK：アクション

@objc func longPressed(sender: UILongPressGestureRecognizer) {

    if sender.state == UIGestureRecognizerState.began {

        let touchPoint = sender.location(in: self.tableView)
        if let indexPath = tableView.indexPathForRow(at: touchPoint) {

            print("Long pressed row: \(indexPath.row)")
        }
    }
}
11
Sazzad Hissain Khan

SwiftのVerision 3の場合

func longPress(_ longPressGestureRecognizer: UILongPressGestureRecognizer) {
    if longPressGestureRecognizer.state == UIGestureRecognizerState.began {
        let touchPoint = longPressGestureRecognizer.location(in: self.view)
        if let indexPath = notificationTabelView.indexPathForRow(at: touchPoint) {
            print("indexPath=\(indexPath)")
            // your code here, get the row for the indexPath or do whatever you want
        }
    }
}

viewDidLoad関数で

let longPressGesture:UILongPressGestureRecognizer = UILongPressGestureRecognizer(target: self, action: #selector(EmployeeNotificationViewController.longPress(_:)))
    longPressGesture.minimumPressDuration = 1.0 // 1 second press
    longPressGesture.delegate = self as? UIGestureRecognizerDelegate
    self.notificationTabelView.addGestureRecognizer(longPressGesture)
6
Pushpendra

これを回避するには、UILongPressGestureRecognizerの代わりにcellForRowAtIndexPath内にdidSelectRowAtIndexPathを追加します。

1
Shamsudheen TK

IBActionを使用すると、次のことができます（CollectionViewの場合）：

@IBAction func handleLongPress(sender: AnyObject) {

    if sender.state == UIGestureRecognizerState.Began
    {
        let position = sender.locationInView(sender.view)

        if let indexPath : NSIndexPath = ((sender.view as! UICollectionView).indexPathForItemAtPoint(position))!{
            print("You holding cell #\(indexPath.item)!")
        }
    }
}

Long Press Gesture Recognizerとリンクすることを忘れないでください。

1
javiswift
let longPressGesture = UILongPressGestureRecognizer(target: self, action: (#selector(YourCustomeTableCell.longTap)))
self.addGestureRecognizer(longPressGesture)

func longTap(){
    print("Long tap")
}
0
Chandramani